Skf Industrial Trading & Development Company, B.v.

Carl Axel Wannerskog

Sture L Asberg

In a bearing assembly having at least two relatively rotatable members, a device having means for generating a magnetic field and means for sensing variation in the magnetic field, said bearing assembly including means for inducing variations in the magnetic flux which variations have a frequency proportional to the rotational speed of one member relative to other member, said inducing means being associated with one of said members and said means for sensing variations being associated with said other bearing member and seal means partly defined by said members completely sealing said inducing and sensing means.

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Goteborg, Sweden

Carl Axel Wannerskog